I will arrive at PEK in a few weeks. What is the quickest way to Tianjin Railway Station/Heping?

You are suggested to take long-distance bus from the airport to Tianjin Tianhuan Bus Station first. The bus schedules are from 06:30 to 23:00. The ticket fare is CNY 82 per person. And the ticket fare is around 2.5 hours. Then take a taxi to the Tianjin Railway Station with the fare of around CNY 20. From Tianhuan Bus Station to Heping District, you can also take a cab. It may cost around CNY 15 in the day time.